Apparatus for transferring data between bodies undergoing rotation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04B-005/00
H04L-027/00
H04Q-009/00
G01D-021/00
출원번호
US-0319043
(2010-05-07)
등록번호
US-9143842
(2015-09-22)
우선권정보
GB-0907892.4 (2009-05-07)
국제출원번호
PCT/EP2010/002807
(2010-05-07)
§371/§102 date
20120112
(20120112)
국제공개번호
WO2010/127867
(2010-11-11)
발명자
/ 주소
Olesen, Ib
출원인 / 주소
Vestas Wind Systems A/S
대리인 / 주소
Patterson & Sheridan, LLP
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
An apparatus for transferring data between bodies undergoing rotation is provided. The bodies in question may be wind turbine components such as a turbine drive shaft and a stationary part of the turbine, such as nacelle gearbox. A data or control signal can therefore be transmitted between a rotati
An apparatus for transferring data between bodies undergoing rotation is provided. The bodies in question may be wind turbine components such as a turbine drive shaft and a stationary part of the turbine, such as nacelle gearbox. A data or control signal can therefore be transmitted between a rotating member, such as a turbine blade, and equipment in the nacelle. The apparatus comprises two members that are placed adjacent and opposing one another, and on the opposing surface of which a number of electrical paths are provided. The closed electrical paths do not enclose the rotational axis. At least one of the loops is energized with a carrier high frequency oscillating signal to create a flux that threads the loop on the opposing member. Modulation of the carrier frequency allows signals to be transmitted between the members.
대표청구항▼
1. A signaling device for transmitting electrical signals between two wind turbine components that in operation undergo rotation relative to one another, the signaling device comprising: first and second members for coupling to respective first and second wind turbine components, the first and secon
1. A signaling device for transmitting electrical signals between two wind turbine components that in operation undergo rotation relative to one another, the signaling device comprising: first and second members for coupling to respective first and second wind turbine components, the first and second members having at least intermittently opposing surfaces and undergoing relative rotation to one another about an axis of rotation perpendicular to the opposing surfaces; andone or more respective electrical paths mounted on each of the opposing surfaces in positions that, due to the relative rotation of the first and second members, at least partly correspond to each other during the rotation, wherein in operation the electrical paths are energized to create a flux that threads the corresponding electrical paths of the first and second members;wherein the axis of rotation is located outside of the one or more electrical paths, such that the electrical paths of at least one of the first and second members rotate orbitally around the axis of rotation. 2. The signaling device of claim 1, wherein the axis of rotation is displaced from the center of at least one of the first and second members, such that the opposing surfaces of the first and second members intermittently oppose one another as the rotation brings one member into positional correspondence with the other. 3. The signaling device of claim 1, wherein the axis of rotation is located at the center of at least one of the first and second members. 4. The signaling device of claim 1, wherein the one or more electrical paths include at least one of an electrical signal transmitter and an electrical signal receiver. 5. The signaling device of claim 4, wherein the electrical signal transmitter is configured to apply an oscillating carrier signal to at least one of the one or more electrical paths. 6. The signaling device of claim 5, wherein digital signals are represented by changing the sign or the phase of the oscillating carrier signal. 7. The signaling device of claim 1, wherein one of the first and second wind turbine components is stationary. 8. The signaling device of claim 7, wherein the one wind turbine component that is stationary is a gearbox and the first member is mounted on the gearbox. 9. The signaling device of claim 8, wherein the other wind turbine component is a rotating shaft and the second member is mounted to rotate with the rotating shaft. 10. The signaling device of claim 1, wherein one of the wind turbine components is a rotating shaft, and the opposing surfaces of both first and second members each define a respective central hole for receiving the rotating shaft about which the opposing surfaces undergo relative rotation. 11. The signaling device of claim 10, wherein the first and second members are rotationally symmetric about the rotating shaft. 12. The signaling device of claim 10, wherein the electrical paths comprise a plurality of loops arranged at a same radial distance from the axis of rotation. 13. The signaling device of claim 12, wherein the electrical paths comprise a second plurality of loops arranged at a different radial distance from the axis of rotation. 14. The signaling device of claim 1, wherein the electrical paths are loops having long and short sides, wherein the long sides are concentric circular sections and the short sides connect the concentric circular sections. 15. A wind turbine, comprising: a wind turbine tower; anda signaling device disposed on the wind turbine tower and configured to transmit electrical signals between two wind turbine components that in operation undergo rotation relative to one another, the signaling device comprising: first and second members for coupling to respective first and second wind turbine components, the first and second members having at least intermittently opposing surfaces and undergoing relative rotation to one another about an axis of rotation perpendicular to the opposing surfaces; andone or more respective electrical paths mounted on each of the opposing surfaces in positions that, due to the relative rotation of the first and second members, at least partly correspond to each other during the rotation, wherein in operation the electrical paths are energized to create a flux that threads the corresponding electrical paths of the first and second members;wherein the axis of rotation is located outside of the one or more electrical paths, such that the electrical paths of at least one of the first and second members rotate orbitally around the axis of rotation. 16. A wind turbine, comprising: a tower;a nacelle disposed on the tower; anda signaling device disposed on the tower, the signaling device comprising: a first member disposed on a first axis;a first plurality of electrical paths disposed on the first member, each path being at a location removed from the first axis;a second member disposed on a second axis, the first and second members being rotatably disposed relative to each other in respective planes that are parallel to each other; anda second plurality of electrical paths disposed on the second member, each path being at a location removed from the second axis, wherein, during relative rotation of the first and second members: the first plurality and second plurality of electrical paths are rotated relative to each other; andenergizing at least one electrical path of one of the first plurality and second plurality of electrical paths creates a flux that induces a current in at least one electrical path of the other one of the first plurality and second plurality of electrical paths, whereby the signaling device is configured for transmitting electrical signals between two wind turbine components that in operation undergo rotation relative to one another. 17. The wind turbine of claim 16, wherein the first axis and the second axis are the same. 18. The wind turbine of claim 16, wherein one wind turbine component is a gearbox and the first member is mounted on the gearbox. 19. The wind turbine of claim 18, wherein the other wind turbine component is a rotating shaft and the second member is mounted to rotate with the rotating shaft. 20. The wind turbine of claim 19, wherein the first and second members each define a respective central hole for receiving the rotating shaft.
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